Excessive Sweating??

So for about a good year I've noticed that my underarms sweat hell of alot and I don't understand why. I've tried literally EVERY deodorant ( Dove, Degree, Mitchum, etc. ) and it seems like nothing works. Like I won't smell musty or anything but I'll always sweat and it's pretty annoying. I've recently started using Native deodorant and I haven't seen too much of a change( I'm trying to be patient with it) Has anyone else experienced this issue? If so what did you do to help it?